Improvement in shoe-lasts



- s, BBOTT.

LAST.

No. 46,174. v Patented Jan. 31, 1866.

. nary sh oe last.

UNITED vSTATES PATENT OFFICE."

SAMUEL K. ABBOTT, 013 SALEM, ASSIGNOR .TOJOEL D. CHAMPION, OF

NASHUA, NEW HAMPSHIRE.

IMPROVEMENT IN SHOE-LASTS.

Specification forming part of Letters Patent No. 46,174, dated January31, 1865.

tion, and represented in the accompanying drawings, of which Figure 1denotes a. top'view,-Fig. 2 a side elevation,Fig. 3 a longitudinalsection, and Fig. 4. atransverse section, of a last provided withmyinvention, which is a neans or mechanism for fastening the npperjendof the instep-block to the remainder of theiast.

In the drawings, A denotes the instep-block, and B the balance orremainder of an ordi- The portion A or instepblock has at its lower enda pin; or dowel, a,

which enters'a corresponding hole, 1), formed in the other part ofthe'last. At the rear end of the instep-block there isja notch, a,through which a strap, 01, of leather or other; flexible material, isarranged in manner as shown in Figs. 1 and 3, such strap, at or near itslower end, being fastened to the instep-block. A bow-v spring, 0, madeof wire and formed as shown in Fig.4, spans the last and the heel partof the instep-block directly in .the rear of the strap (1, asshown inthe drawings, such spring being fastened at or near its two ends to thelower portion, B, of the last. The elastic force of the spring should besuch as to impel the upper or middle part of it in the direction of thetoe of the last, or, in other words, toward the strap (1, when extendingabove and in front of the spring in the manner as. shown in thedrawings. The spring, bygoing "across the heelvof the instep-block,serves, with the dowel, to keep thesaid block in place on the portion Bof the last. By laying hold of the strap and pulling itbackward we shallnot only force the spring otl' the instep-bloclg but draw the block awayfrom the part B.

In applyingthe instep-block to the part B the dowel-should first beinserted in its hole,- al'ter which, by pressing the block down upon thespring, the latter will be forced backward until the instep-block maydescendupon its" seat. As soon as this latter may have taken place theelastic force of the spring will carryv the spring forward to placeimmediately over the heel of the block.

I claim The instep-block fastener composed of the bow-spring e and thestrap d, arranged with respect to one another and the block and theremainder of the last, substantially in manner and so as to operate asdescribed.

s. K. ABBOTT.

Witnesses: 1 p

H. 0. PHILBROOK,

J. (J. EWINs.

